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Sri Ramadiana
Jurusan Agronomi dan Hortikultura Fakultas Pertanian Universitas Lampung
Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology

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Pengaruh Kemarau terhadap Pertumbuhan dan Produksi Tujuh Klon Kakao Sugiatno Sugiatno; Ali Fitrah Hansyah; Rusdi Evizal; Sri Ramadiana
JURNAL AGROTROPIKA Vol 21, No 1 (2022): Jurnal Agrotropika Vol 21 No 1, Mei 2022
Publisher : Universitas Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/ja.v21i1.5830

Abstract

Long droughts and high rainfall as a result of climate change have an effect on reducing cocoa yields. This study aimed to study the effect of the 2019 drought on the growth and production of seven cocoa clones. The research was conducted from September 2019 to February 2020 in Cibinong Village, Way Ratai District, using a Randomized Block Design (RAK) with 3 replications and treatment of seven cocoa clones, namely BCL clones, BL 50, MCC 02, Sul 1, Sul 2, ICCRI 01, and ICCRI 03. The cacao plants used were 5 years old after side grafting using rootstocks of local varieties from seeds, with a monoculture planting system. The results showed that in 2019 Lampung Province experienced a long dry season with 7 dry months, namely from May to November, with a total rainfall of 1718 mm, and in August and September it did not rain at all. Clones had an effect on the number of cocoa leaves in November and February, but had no significant effect on the number of leaf flushes, number of flowers, number of pistils, and number of fruit. Long drought reduced leaf flush count, flower count, pistil number, and the number of small, medium, and large fruit. The long drought caused minor crop failures in the current year (in October) and major crop failures the following year (April). Key words : Cacao, clone, drought, growth, production 
PENGARUH KONSENTRASI NAA ATAU IBA TERHADAP PENGAKARAN CANGKOK DUA VARIETAS MANGGA (Mangifera indica L.) Muhammad Adi Riwanda; Yusnita Yusnita; Dwi Hapsoro; Agus Karyanto; Sri Ramadiana
JURNAL AGROTROPIKA Vol. 25 No. 2 (2026): Jurnal Agrotropika Vol 25 No 2, Oktober 2026
Publisher : Universitas Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/ja.v25i2.8955

Abstract

In order to fulfill the need for mangoes in Indonesia, it needs to produce high quality seedsin ashort time. The aim of this research was to determine the effect of administering NAA or IBA in several concentrations to improve the quality of grafted roots including root emergence time, number of primary roots, primary root length, root wet weight and root dry weight. The research and data collection was carried out in August – December 2023 in Pringsewu, Lampung. This research used a randomized complate block design (RCBD) with 4 replications. Treatments were arranged factorial (2x5). The first factor is the mango varieties (A), Arumanis (A1) and Manalagi (A2). The second factor is the type of auxin (B) which includes no auxin (B1), 1000 ppm NAA (B2), 1000 ppm IBA (B3), 2000 ppm NAA (B4) and 2000 ppm IBA (B5) so there are 10 treatment combinations. The second experimental design used a completely randomized design (CRD) with four replications. The research results obtained were that NAA and IBA had an effect on the growth of mango graft roots. The best treatment is giving IBA 2000 ppm which produces the fastest root emergence time, number of primary roots, primary root length, root wet weight and highest root dry weight.
Co-Authors Agus Karyanto Ali Fitrah Hansyah Dwi Hapsoro Muhammad Adi Riwanda Rusdi Evizal Sugiatno Sugiatno Yusnita Yusnita